import axios from "axios"

export default function ajax(url, data = {}, type = "get") {
  return new Promise((resolve, reject) => {
    let promise
    if (type === 'get') {
      // 准备url query 参数数据
      let dataStr = '' //数据拼接字符串
      Object.keys(data).forEach(key => {
        dataStr += key + '=' + data[key] + '&'
      })
      if (dataStr !== '') {
        dataStr = dataStr.substring(0, dataStr.lastIndexOf('&'))
        url = url + '?' + dataStr
      }
      // 发送get 请求
      promise = axios.get(url)
    } else {
      // 发送post 请求
      promise = axios.post(url, data)
    }
    promise.then(response => {
      resolve(response.data)
    }).catch(error => {
      reject(error)
    })
  })
}
